内燃机工程2024,Vol.45Issue(3) :70-76.DOI:10.13949/j.cnki.nrjgc.2024.03.008

泵气损失对柴油机性能影响分析

Analysis of the Influences of Pumping Loss on the Performance of a Diesel Engine

朱涛 朱娜 高磊
内燃机工程2024,Vol.45Issue(3) :70-76.DOI:10.13949/j.cnki.nrjgc.2024.03.008

泵气损失对柴油机性能影响分析

Analysis of the Influences of Pumping Loss on the Performance of a Diesel Engine

朱涛 1朱娜 1高磊1
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作者信息

  • 1. 潍柴动力股份有限公司,潍坊 261061
  • 折叠

摘要

基于某款船用中速柴油机,在当前配置状态的基础上,利用试验数据测试和GT-Power一维仿真计算手段,研究了不同配气凸轮型线、排气管直径、增压器配置对柴油机泵气损失和燃油消耗率的影响.选取部分优化方案来制作样件,并通过开发试验对比验证.结果表明,通过优化匹配可以分别将高转速高负荷工况、低转速低负荷工况的泵气损失和燃油消耗率降低到最佳水平.

Abstract

Based on a certain medium speed marine diesel engine and its current configuration status,experimental data testing and the GT-Power one-dimensional simulation calculation methods were used to study the effects of different valve cam profiles,exhaust pipe diameters,and turbocharger configurations on the pumping loss and fuel consumption rates.Some prototypes were implemented according to the optimization solutions,and the results were verified through development experiments.The results show that by optimizing matching,the pumping loss and fuel consumption rates under high speed and load operating condition,even low speed and load operating condition can be reduced to the optimal level.

关键词

船用中速柴油机/燃油消耗率/泵气损失

Key words

medium speed marine diesel engine/fuel consumption rate/pumping loss

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出版年

2024
内燃机工程
中国内燃机学会

内燃机工程

CSTPCD北大核心
影响因子:0.601
ISSN:1000-0925
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